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    LIGHT DIFFRACTION ELEMENT UNIT AND OPTICAL COMPUTATION DEVICE
    2.
    发明公开
    LIGHT DIFFRACTION ELEMENT UNIT AND OPTICAL COMPUTATION DEVICE 审中-公开

    公开(公告)号：US20240085600A1

    公开(公告)日：2024-03-14

    申请号：US18274557

    申请日：2022-01-14

    申请人： FUJIKURA LTD.

    发明人： Hiroyuki Kusaka ,  Masahiro Kashiwagi

    IPC分类号： G02B5/18 ,  G06N3/067

    CPC分类号： G02B5/18 ,  G06N3/067

    摘要： A light diffraction element unit includes a base material including a light-transmissive and flexible layer member, a light diffraction structure including microcells and disposed on a portion of a main surface of the base material, and a holding part holding the base material and including a layer member or a plate member having an opening that penetrates through a pair of main surfaces of the layer member or the plate member. The holding part holds an annular portion of the base material such that the light diffraction structure is encompassed in the opening. The annular portion surrounds the portion of the main surface of the base material.

    LIGHT DIFFRACTION ELEMENT AND OPTICAL COMPUTING SYSTEM
    3.
    发明申请
    LIGHT DIFFRACTION ELEMENT AND OPTICAL COMPUTING SYSTEM 有权

    公开(公告)号：US20220269100A1

    公开(公告)日：2022-08-25

    申请号：US17635483

    申请日：2021-06-17

    申请人： FUJIKURA LTD.

    发明人： Hiroyuki Kusaka ,  Masahiro Kashiwagi

    IPC分类号： G02B27/28 ,  G02B5/18 ,  G02B5/30

    摘要： A light diffraction element, that has cells, includes first regions and second regions. Each of the cells comprises one of the first regions and one of the second regions. Each of the first regions has a thickness or a refractive index that is independently set. The second regions have a uniform thickness or a uniform refractive index. The first regions allow first polarized components of signal light to pass through. The second regions allow second polarized components of signal light to pass through. The second polarized components are different, in polarization direction, from the first polarized components. The light diffraction element performs optical computing by causing the first polarized components of signal light that have passed through the first regions to interfere with each other. The first polarized components of signal light output from the light diffraction element indicate information after the optical computing.

    Fiber laser system, fiber laser system production method, and processing method
    4.
    发明授权
    Fiber laser system, fiber laser system production method, and processing method 有权

    公开(公告)号：US10522967B2

    公开(公告)日：2019-12-31

    申请号：US15450224

    申请日：2017-03-06

    申请人： FUJIKURA LTD.

    发明人： Masahiro Kashiwagi

    IPC分类号： B23K26/00 ,  H01S3/23 ,  H01S3/067 ,  B23K26/70

    摘要： The present invention achieves a fiber laser having a high reflection resistance. A length of an optical fiber MMF is set so that a condition is satisfied at each point on an individual optical path of a fiber laser (FL2), the condition being that a difference between time at which a power of a forward Stokes beam (SF) is at a maximum value and time at which a power of a backward Stokes beam (SB) is at a maximum value is greater than a sum of a half width at half maximum of the power of the forward Stokes beam (SF) and a half width at half maximum of the power of the backward Stokes beam (SB).

    OPTICAL-POWER MONITORING DEVICE, FIBER LASER, AND OPTICAL-POWER MONITORING METHOD
    7.
    发明申请
    OPTICAL-POWER MONITORING DEVICE, FIBER LASER, AND OPTICAL-POWER MONITORING METHOD 有权
    光功率监测装置，光纤激光和光功率监测方法

    公开(公告)号：US20160359289A1

    公开(公告)日：2016-12-08

    申请号：US15243229

    申请日：2016-08-22

    申请人： FUJIKURA LTD.

    发明人： Masahiro Kashiwagi

    IPC分类号： H01S3/00 ,  H01S3/067 ,  G02B6/26 ,  G02B6/42 ,  G01J1/42

    CPC分类号： H01S3/0014 ,  G01J1/0295 ,  G01J1/0425 ,  G01J1/4257 ,  G02B6/264 ,  G02B6/4286 ,  G02B6/4287 ,  G02B6/4291 ,  H01S3/06704 ,  H01S3/0675 ,  H01S3/094007

    摘要： The light power monitoring device includes: a first optical fiber; a second optical fiber connected to the first optical fiber; a low-refractive-index resin layer which covers (i) a connection between the first and the second optical fibers and (ii) a predetermined region of the second optical fiber which region extends from the connection toward a forward-propagating-light-output side; a high-refractive-index resin layer which covers a region of the second optical fiber which region is not covered by the low-refractive-index resin layer; and an outputted light detecting device which is provided at a position corresponding to an end of the low-refractive-index resin layer which end is located on the forward-propagating-light-output side of the second optical fiber or at a position which is away toward the forward-propagating-light-output side of the second optical fiber from the position corresponding to the end of the low-refractive-index resin layer.

    摘要翻译： 光功率监测装置包括：第一光纤; 连接到第一光纤的第二光纤; 低折射率树脂层，其覆盖（i）第一和第二光纤之间的连接，以及（ii）第二光纤的预定区域，该区域从连接朝向正向传播光输出 侧; 高折射率树脂层，其覆盖所述第二光纤的区域未被所述低折射率树脂层覆盖的区域; 以及输出光检测装置，其设置在与所述低折射率树脂层的端部对应的位置，所述端部位于所述第二光纤的前向传播光输出侧，或位于所述第二光纤 从与低折射率树脂层的端部对应的位置朝向第二光纤的正向传播光输出侧。

    IMAGING DEVICE, IMAGING METHOD, AND METHOD FOR PRODUCING THE IMAGING DEVICE
    9.
    发明公开
    IMAGING DEVICE, IMAGING METHOD, AND METHOD FOR PRODUCING THE IMAGING DEVICE 审中-公开

    公开(公告)号：US20240236513A1

    公开(公告)日：2024-07-11

    申请号：US18001265

    申请日：2022-01-18

    申请人： Fujikura Ltd.

    发明人： Hiroyuki Kusaka ,  Masahiro Kashiwagi ,  Yuichiro Kunai

    IPC分类号： H04N23/95 ,  H04N23/80 ,  H04N25/40

    CPC分类号： H04N23/95 ,  H04N23/815 ,  H04N25/41

    摘要： An imaging device includes: an optical computing section that receives a first optical signal and generates a second optical signal including a feature amount extracted from the first optical signal; an image sensor that converts the second optical signal into a first electric signal including a piece of image information; and a computer that receives the first electric signal and generates second electric signals using machine learning models, each of the second electric signals corresponding to a respective one of the machine learning models, wherein: each of the second electric signals, generated from the first electric signal including the same piece of image information, includes different image information.

    OPTICAL COMPUTING DEVICE AND OPTICAL COMPUTING METHOD
    10.
    发明公开
    OPTICAL COMPUTING DEVICE AND OPTICAL COMPUTING METHOD 审中-公开

    公开(公告)号：US20240103207A1

    公开(公告)日：2024-03-28

    申请号：US18009513

    申请日：2021-06-30

    申请人： FUJIKURA LTD.

    发明人： Hiroyuki Kusaka ,  Masahiro Kashiwagi ,  Yuichiro Kunai

    IPC分类号： G02B5/18 ,  G02B5/00

    CPC分类号： G02B5/18 ,  G02B5/005

    摘要： An optical computing device includes: a light diffraction element group including light diffraction elements having an optical computing function, wherein the light diffraction element group passes light through the light diffraction elements in turn, the light passing through the light diffraction elements was either: reflected or scattered from a non-illuminant object located outside the optical computing device, or emitted from an illuminant object located outside the optical computing device, and neither the non-illuminant object nor the illuminant object is a display.